Vulcanizer.



. J. POLLAK.

VULCA'NIZER.

' APPLICATIONFILED-SENS. i918.

1 ,288, 1 8 1., lumnml' 1m. 17, 191s.

y i i,2ss,1s1.y l

'JOSEPH POLLAK, or nonoHEsTER, MASSACHUSETTS;

VULCANIZER.

f specification of Letters Patent.y Y Patented Dec. 17, 1918-.`

[Application mee September 5, 1971s'. i serial No. 252,749.

To all whom t may concern Be it known that I, JOSEPH PoLpAir, a citizenmof thef'United States, residing at Dorchester, in ythe county of Suffolk and State of Massachusetts, have invented new and useful Improvements in Vulcanizers, of*` whichthe following is a specification.

The object of this invention is to provide a Simple, kinexpensive and eiicient device which ymay be employed for vulcanizinga, patch upon a tire tube, andmay be used 1n v'connection Lwith a pan containing `an inflammable material by which the patch is heated and pressed uponvtheboidy of the` tire, although obviously as will be seen its use is not confined to its employment with such a pan. l Y

On the accompanying drawingsf- Figure 1 represents in Side elevation a vulcanizing device embodying the invention. Fig. 2 represents a planview of the same.

Fig. 3 represents a portion of theibla'nkA which constitutes the bearing of the gooseneck. n

, Fig. 4t represents in section the spindle on .which the spring clamp is'journaled.

Fig. 5 shows the clamping member-lin its lowermost position and indicates by dotted lines the tube to be vulcanized,'the patch and the heated pan or plate. l

yWith the exception ofv the handle by which the spindle is rotated, all ofthe parts of the device which I shall now describe are formed of sheet metal by means o f sultable punching, drawing and shaping dies.

The base of the device consists of an in verted cup, thus atl'ording a flat circular table 10 and a depending peripheral flange 11 upon which the device rests. This base is stamped and drawn from sheet metal.

Il pon the fiat upper surface kof the base may be located the part to be vulcanized. Se? cured to the base there is al gooseneck 1nd1- cated as a whole at 12. This consists of a' single sheet metal stamping, the fmiddleporf tion of which is bent into cylindrical forni indicated Iat 413 to afford a bearing for ay spindle 14. lThe extremitiesof the stamp'- ingof which ythe gooseneck is formed, ex`

tend in opposite directions and arecurved so as to fit upon the exterior .o'f the base flange 11, as indicated at 15. yBetween the attaching members 15 and the. bearing 13, the intermediate portions of the stamping or blank are brought into facial contact and are spot-welded together as indicated at 16;

16.1The members 15 are preferably spotwelded as at 17 to the flange 11 of the base. Viewed kin side elevation, Vas in Fig. 1, they intermediate portion of the member 12 con` stitutesa gooseneck, the bearing of vwhich overhangs the center of the base with its axis approximately coincident with the axis of the basel Within the bearing 13, there is,

as previously stated, a spindle M which is capable of rotative and sliding movement therein; This Spindle also consists of a flat.

f metal blank which is bent into tubularform,

as illustrated in Fig. 4. lAt-its upper end it is aperturedas at 18 toreceive a cross pin 119 by which it maybe rotated. The endsy of the cross pin or handle 119 are headed as at120 to prevent its dislocation from the spindle. The handle is sliicientlv looe in the apertures 18 to permit it to move endvwise to vary. the vleverage upon the spindle.v

The bearing 13 is provided with vone or more camy slotsy 19 with which are operaf tively engaged proJections. z'. e. the ends of a cross pin 20 passed through the spindle 14.v

21 are located at the vupper ends of the slots kThese slotsfare helicoidal. each extending A through an arc of a little less than 180. f At their ends the slots 19 are provided with oii'- set portions 21, 22, respectively. Those at andthose at 22 at the lower ends thereof.

Theser offsets furnish sockets to hold the spindle against accidentall rotation after itl has reached the endof lts up and down movement. The lower end ofithe spindle 14 is' reduced inl diameter as indicated at 23 to provide a shoulder 24, anduponthe re- -ducedend there is placed rotatively a clamping member such as a spider indicated as a whole at 25. The spider is held in place by spreading or upsetting the extremity of the spindle to provide a shoulder26. The spider isprovided with a pluralityof spring arms 27 projecting' radially from' a common center or body portion. VSaid arms have their extremities terminating in the same plane so that vthey may be engaged with a plate or other member inserted betweenthem and the material which is located upon the base. By employing resilient sheet material in the construction of the spider, a yielding pressure is secured upon the material being vul:- canized. In dotted lines I have indicated at a van inner tube to which a patch is being applied bv a heated plate'or pan indicated 1n dotted lines at b. A Y A After the part to be repairedhas beenA Y rplacedlzupon and# V 1rmernber-l carrying thejpatchhasfbeen located in pofv ston, and,V i'f provided..l With 'combustible Ymaterial, the latter" isf ready Vto beignted,

the handle `119Y is rotated to rotate thespni-` l rfa' Ytable, .to

L thetableandfoverhangng'the same, said Y Lang, :t'elalnpng member, a spindlefsupportfling said member! at its lowerrend, nand means dle,V and7 by reason of the engagement of'fby.' lwhich oscillation ofthe'spndle about t's and is held-V afganst' reverse rotatiolby fthef;

shoulders '01#v proj eeton's 28,12'l as f `indieatedy jnj caniz'edtogether,'the `rubber of A'oo unse' itself Y. theppn 20Withthe*helicoidal'slot-19,'1ovll`l a-*Xiseliets1thellengthwsernovement there- V force the spndleendwse down'Wardly. -y The ,i of,;cons stlng of `one or more'heloodal or arms of the spider engage the member b5 as'-""ca1n"slots` in said:"b'earngand projections it descends, and cla-mp thelr member b yield;V k inglj` against the part "a @tof be1`vulegu1izediv` As the; pin vapproaches the lower endsgofj, the i slots 19,' it' vfinally rdesnt'th'e sookfetfsf22.

olioscillaton of :the l'spindle about its on sadfspindle; operatively engaged `Yinsaid :a table, a jgosenecksecured to,v

I Ygooseneel;hagringaat;tsgjenda tubular bearingatit's fend atubular bearn.

bearing-and;engagedby the endsfof said n f having,- a `cyljndrieal dependent^`^rmvorA gooseneck" 'consisting y of? al sheetf metal" base consisting .of a "cireularj sabbe j doubledi oni Mitself `and formed. Y

Y inte'tubular-forme mounted in Said. healing; a cro'ssfplnV "assrnggthrougliisardsplndle and hmmalts ingjrl'll using` theisalne," although Without.; on said spindle .to-*operateiti attemptjng'- to setfforthgall oftle :formel in 'which s"it II'nay bemadeior-all 'offtheLn'dgodesofi signature:

essere@lwhefeeff-rum amm@ my.: 

